Limits of upgrading Eastern Canadian coals high in sulphur by washing

This paper provides a description of the Highmont copper-molybdenum concentrator from primary crushing through grinding, flotation, tailings disposal and water reclamation. The unique features of the operation will be emphasized.

This paper outlines the scope and applications of 'COALMOD', the British Columbia Ministry of Energy, Mines and Petroleum Resources' computerized financial simulation model for coal mining developments. After a description of the computer system and language of implementation, the logic and scope of current model sub-routines are presented. This is followed by a presentation of examples on the current applications of the model to public policy evaluation, including benefit-cost analysis,...

Hydraulic drills, recently implemented at the Tantalum Mining Corporation of Canada, Limited, Bernic Lake Mine, are proving to be an economic alternative to pneumatic drilling systems. The paper describes the application of an electric-hydraulic drill jumbo to the mechanized room-and-pillar mine and its performance. The application of these drills resulted in improved environmental and working conditions.Drill rods and bits are a major cost centre in hard-rock mining applications. The paper...

A simplistic algorithm for simulating the rod or ball mill Bond grindability test applied to ores and minerals is presented. A performance comparison between the present algorithm and a previously published algorithm by Kapur, modified in this work for a fair evaluation, is also given. A worked example is furnished for leading the reader through the various calculations.

On April 22, 1980, the Ontario government introduced a totally new incentive program for mineral exploration in the province to be effective September 1, 1980. Replacing the former Mineral Exploration Assistance Program (MEAP) and also the assistance formerly provided to the mining sector under the Small Business Development Corporations Act, the new Ontario Mineral Exploration Program (OMEP) promises to offer a valuable benefit to certain eligible applicants.Unfortunately, the program is not...

Kaiser Resources Ltd. has completed feasibility studies resulting in approval of $277,500,000 for the construction of the Greenhills Surface Coal Mine, located 35 km north of Sparwood, B.C. The mine is designed to produce 1,800,000 tonnes per year of metallurgical coal over a 20-year period by conventional truck/shovel methods.The project is in the detailed design phase, with some preparation work being carried out on the site. The major construction activities are scheduled to commence in...